diy solar

diy solar

4 MWh SRNE ASF48100U200-H 10kw.

There is definitely something wrong with my unit, its like its ignoring the settings i am putting in, they are saved and show on the screen but its still using the defaults for everything in the background, For example i have the charging current set to 200A and its limiting it at 65A, wasting half my solar, i have the low voltage disco set at 46, but its going down to 44 instead, and its ignoring the recovery voltage.
 
There is definitely something wrong with my unit, its like its ignoring the settings i am putting in, they are saved and show on the screen but its still using the defaults for everything in the background, For example i have the charging current set to 200A and its limiting it at 65A, wasting half my solar, i have the low voltage disco set at 46, but its going down to 44 instead, and its ignoring the recovery voltage.
Weird.
 
There is definitely something wrong with my unit, its like its ignoring the settings i am putting in, they are saved and show on the screen but its still using the defaults for everything in the background, For example i have the charging current set to 200A and its limiting it at 65A, wasting half my solar, i have the low voltage disco set at 46, but its going down to 44 instead, and its ignoring the recovery voltage.
That's very odd. I did notice the low voltage disconnect not taking but thought it may be because I don't have grid input.
There are 2 settings options for max charge current, 1 for grid and one for overall. You are adjusting 07, correct? What are you using in setting 06? I'm OSO.
 
Damned clouds this morning... I re-angled the ground mount to its steepest setting, less than a month ago I was seeing well over 100a going into the batteries. The ground mount, at a steep angle is making more power than the roof mounts that have ~1800w more in panels...
Really considering placing an order with inxeption before it gets to cold to enjoy working outside...
IMG_20231105_143709.jpg
 
Ya im not using solar assistant, im using ESPHome with modbus comms to see my data but im stiull working on writing the code to get all the registers in there and firmware version isnt implemented yet :(
 
Wow! Thank you for that...didn't know I could see all that through Solar Assistant....found it though!!
Don't panic when you realize the voltages for battery settings are based off 12v... I alerted the Solar Assistant team and they do plan to fix it.
Ya im not using solar assistant, im using ESPHome with modbus comms to see my data but im stiull working on writing the code to get all the registers in there and firmware version isnt implemented yet :(
Nice. I wish I paid more attention in my programming / coding classes...
You can see the fw version from the display, page 6 on the bottom right side.
 
Don't panic when you realize the voltages for battery settings are based off 12v... I alerted the Solar Assistant team and they do plan to fix it.

Nice. I wish I paid more attention in my programming / coding classes...
You can see the fw version from the display, page 6 on the bottom right side.
P.S. my firmware in the Sungold 10k48 matches your values above FYI
 
Don't panic when you realize the voltages for battery settings are based off 12v... I alerted the Solar Assistant team and they do plan to fix it.

Nice. I wish I paid more attention in my programming / coding classes...
You can see the fw version from the display, page 6 on the bottom right side.

Ya it certainly helps lol, only problem I'm having is the data doesn't seem to be matching up, for example, no mater what is going on with the inverter whether its day time with 11k sun or night time running from the bank the battery charging modbus address for Amp is always showing 65, which is definitely not right, the battery voltage modbus is accurate but not that one lol, also there doesn't seem to be that I can find a modbus address to tell me what Amps is being discharged from the battery, unless it's that same modbus and it shows negative when discharging and its just not working correctly, I'm not sure, could be my modbus manual is old as well, who knows lol. Also the pv to battery charge modbus address seems to be off as well, I will see up to a 1 kw difference between total solar generation, total load and that charging value, they just don't seem to add up.
 
my inverter has arrived in a port on the other side of the country. Might even have it in a few days. Unfortunately i can currently output only 150 amps with my battery setup. If the battery cuts off via bms, will the unit throw an error code and shut down, or will it switch to grid immediately? Do one of guys mind testing this? the manual states that yes it does "affect the outputs"

I am aware i need more storage and i will have it soon
 
Ya it certainly helps lol, only problem I'm having is the data doesn't seem to be matching up, for example, no mater what is going on with the inverter whether its day time with 11k sun or night time running from the bank the battery charging modbus address for Amp is always showing 65, which is definitely not right, the battery voltage modbus is accurate but not that one lol, also there doesn't seem to be that I can find a modbus address to tell me what Amps is being discharged from the battery, unless it's that same modbus and it shows negative when discharging and its just not working correctly, I'm not sure, could be my modbus manual is old as well, who knows lol. Also the pv to battery charge modbus address seems to be off as well, I will see up to a 1 kw difference between total solar generation, total load and that charging value, they just don't seem to add up.
I wonder if it would be easier to use a shunt and pull data for charg / discharge current that way?
The other values not adding up could equate to efficiency. I noticed last night when I was running the dryer and distilling water after the sun went down I was pulling ~8,200w from the battery with a load of ~7,600w, this matches the manual and was kind of shocking / irritating to see. Next time I have it under a heavy load I'll clamp the AC and DC cables to see how accurate it is.
Screenshot_20231107-042737.jpg

my inverter has arrived in a port on the other side of the country. Might even have it in a few days. Unfortunately i can currently output only 150 amps with my battery setup. If the battery cuts off via bms, will the unit throw an error code and shut down, or will it switch to grid immediately? Do one of guys mind testing this? the manual states that yes it does "affect the outputs"

I am aware i need more storage and i will have it soon
Nice! I can confirm, when not running BMS communication, if the batteries go off line the unit will switch to grid if it's available.
You can also enable overload bypass but I'm not sure this would help. Regardless, 150a should give you over 7kw output at normal 16s operating voltages.
 
Nice! I can confirm, when not running BMS communication, if the batteries go off line the unit will switch to grid if it's available.
You can also enable overload bypass but I'm not sure this would help. Regardless, 150a should give you over 7kw output at normal 16s operating voltages.
awesome. thank you once again
 
Nice! I can confirm, when not running BMS communication, if the batteries go off line the unit will switch to grid if it's available.
You can also enable overload bypass but I'm not sure this would help. Regardless, 150a should give you over 7kw output at normal 16s operating voltages.

Great... thats my plan too...JBD app, smart app and a Shunt...should be enough from a starting point...
 
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